I am using the same unit as Lyn (BD4116) on a center fed 250’ doublet Inverted Vee with about 50 feet of 600 ohm open ladder line and about 15 feet of 50 ohm coax.
The KAT500 matches all bands except 6 to 1:1. 6 is matched to 1.3:1. I have been told by some that the hybrid unit is worthless, but I am happy with its performance. (However truth be known although licensed since 1965 I am a casual ham, just a fun side hobby for me. Not a serious contest’er or DX’er. I have a SteppIR DB-18E on a MA-770 so I use the doublet mainly on 160 & 80/75. Cheers, Kim - K7IM Sent from my iPad > On Sep 3, 2020, at 13:26, Lyn Norstad <l...@lnainc.com> wrote: > > Adrian - > > Comment on the BD #4116 "hybrid" balun: > > It's a combination 4:1 impedance transformer and 1:1 current balun all in one > unit. > > I am using that on my 360' center fed EDZ (with 160' true ladder line and 15' > coax) and it combines to give my KPA/KAT500 a match of 1.2:1 or less (mostly > less) SWR across all bands 160-6m. > > 73 > Lyn, W0LEN > > > -----Original Message----- > From: elecraft-boun...@mailman.qth.net > [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Adrian > Sent: Wednesday, September 02, 2020 9:37 PM > To: w5...@comcast.net; Elecraft > Subject: Re: [Elecraft] UPDATE KPA1500 on 160M > > Ok on that. I have good success with true OCF (not windom) antennas and > Balun Designs 4:1 current baluns in the past. > > These days I just use apex high delta loops with direct feed via a > lmr240 multi-wound toroid choke at feedpoint for great results. > > Bottom corner fed (vertically polarised), so feed-line length and losses > are kept minimal . I find this type of antenna very quiet, > > and neighbour friendly in all respects. > > > It would have been interesting to see how a 4116 performed on yours. > > >>> On 3/9/20 11:37 am, w5...@comcast.net wrote: >> 4114T was the BD Balun model #. I'm not putting down there product at >> all. When strictly using the ATU in the K3 it matched wonderfully. >> The fly in the buttermilk was when the KPA1500 was thrown into the mix. >> Ronnie > ______________________________________________________________ > \ > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k...@icloud.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
